Confiabilidade do canal em sistemas DS/CDMA com codificação turbo sujeitos ao desvanecimento lento e seletivo em freqüência e interferência de múltiplo acesso.

Wagner Okano; Fernando Ciriaco; Taufik Abrão

doi:10.5433/1679-0375.2008v29n2p139

Turbo code channel reliability for DS/CDMA systems under slow and frequency selective fading and multiple access interference.

Authors

Wagner Okano Universidade Estadual de Londrina
Fernando Ciriaco Universidade Estadual de Londrina
Taufik Abrão Universidade Estadual de Londrina

DOI:

https://doi.org/10.5433/1679-0375.2008v29n2p139

Keywords:

Channel Reliability, Turbo-Codes, DS/CDMA, Single-user Detection, Multipath Channels.

Abstract

This work analyzes the Turbo and Convolutional codes strategies applied to the single-user detection (SuD) problem in multiple access systems DS/CDMA, in multipath slow Rayleigh channels. In this work, a new equation for the DS/CDMA channel reliability, obtained from Monte Carlo Simulations (MCS), is proposed. Comparison with the literature results and has indicated a superior performance in the high E_b/N₀ regions; in other E_b/N₀ regions the proposed equation has similar performance than those described in the literature. Additionally, this work makes an analysis of the complexity/memory requirements versus performance of DS/CDMA receivers considering turbo (CDMA2000) and Viterbi (IS-95) decoders.

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Author Biographies

Wagner Okano, Universidade Estadual de Londrina

Engenheiro de Telecomunicações da Sercomtel Celular S.A, Londrina, PR. Atualmente é estudante do programa de mestrado do Departamento de Engenharia Elétrica da Universidade Estadual de Londrina (Deel-uel).

Fernando Ciriaco, Universidade Estadual de Londrina

Docente do Departamento de Engenharia Elétrica da Universidade Estadual de Londrina - Deel-uel.

Taufik Abrão, Universidade Estadual de Londrina

Docente do Departamento de Engenharia Elétrica da Universidade Estadual de Londrina - Deel-uel.

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Published

2008-12-15

How to Cite

Okano, W., Ciriaco, F., & Abrão, T. (2008). Turbo code channel reliability for DS/CDMA systems under slow and frequency selective fading and multiple access interference. Semina: Ciências Exatas E Tecnológicas, 29(2), 139–158. https://doi.org/10.5433/1679-0375.2008v29n2p139

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Issue

Vol. 29 No. 2 (2008)

Section

Original Article

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